Base | Representation |
---|---|
bin | 11100011100111… |
… | …01000010011100 |
3 | 121122002200122220 |
4 | 32032131002130 |
5 | 442044414410 |
6 | 35403305340 |
7 | 5625442563 |
oct | 1616350234 |
9 | 548080586 |
10 | 238669980 |
11 | 1127a531a |
12 | 67b1b250 |
13 | 3a5a6653 |
14 | 239aabda |
15 | 15e47070 |
hex | e39d09c |
238669980 has 48 divisors (see below), whose sum is σ = 686343840. Its totient is φ = 61924608.
The previous prime is 238669967. The next prime is 238669993. The reversal of 238669980 is 89966832.
238669980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (238669967) and next prime (238669993).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51535 + ... + 55974.
It is an arithmetic number, because the mean of its divisors is an integer number (14298830).
Almost surely, 2238669980 is an apocalyptic number.
238669980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
238669980 is an abundant number, since it is smaller than the sum of its proper divisors (447673860).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
238669980 is a wasteful number, since it uses less digits than its factorization.
238669980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 107558 (or 107556 counting only the distinct ones).
The product of its (nonzero) digits is 1119744, while the sum is 51.
The square root of 238669980 is about 15448.9475369683. The cubic root of 238669980 is about 620.2964070064.
The spelling of 238669980 in words is "two hundred thirty-eight million, six hundred sixty-nine thousand, nine hundred eighty".
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